Who called from 8566684133

Got a call tonight, in Spanish, no identification on who they are or what they want---

I don't know who MRM is or what they want from us. We have no idea. The call was in bad Spanish---rudimentary. I thought we live in the USA. We have no outstanding debts with anybody.

Who keeps calling me from this number? Is this a collection agency because as far as I know, I do not owe anyone anything!

I keep getting this call from 856-668-4133 and hang up. Is this a phone card?

Thank you

Got a call from MRM 1-800-668-4528.  Is this a debt collection agency?  I don't owe anything to anyone except the IRS with whom I have an arrangement.  No one else should be calling me.